ECOGARD XA5629 Premium Engine Air Filter Fits 2004-2010 Audi A8 Quattro COMPATIBLE with 2004-2010 Audi A8 Quattro. IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and long term power. AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine. FACTORY FIT FOR EASY INSTALLATION. Replaces: FRAM CA10581 Purolator A35629 WIX 49620 OE 4E0 129 620. SPECIFICALLY ENGINEERED AND TESTED for Audi OE (original equipment) engine air filter's fit, form, and function.